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R72 gearbox question

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06 Apr 2019 05:08 #205589 by Charlie
R72 gearbox question was created by Charlie
Hi all - question for the tech gurus:

Did the R72 gearbox/bearing issue ever get solved with the later VVT models? Asking as I am awaiting Jimny no. 3 and as far as I can tell, the new model shares the same gearbox (identical ratios).

Cheers!

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06 Apr 2019 05:16 #205590 by Lambert
Replied by Lambert on topic R72 gearbox question
Yes it was revised in 2009 with lasting results.

Dreadnaught (black 2011)

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06 Apr 2019 05:17 #205591 by Lambert
Replied by Lambert on topic R72 gearbox question
Welcome to the forum btw.

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06 Apr 2019 05:55 #205592 by Charlie
Replied by Charlie on topic R72 gearbox question
Thank you for both, the info and the welcome! Am a long-time lurker and have been a jimny addict since buying an old silver G13bb model, followed by an M13A and (hopefully) a new one soon. :)

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16 Apr 2019 22:43 - 16 Apr 2019 22:43 #206251 by Max Headroom
Replied by Max Headroom on topic R72 gearbox question

Lambert wrote: Yes it was revised in 2009 with lasting results.


Hi Lambert sorry for my late response in this thread - I've been away a few weeks and still catching up.

Do you know what the revisions actually were that cured the problems?


IF IT AINT BROKE, KEEP FIXING IT UNTIL IT IS
Last edit: 16 Apr 2019 22:43 by Max Headroom.

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17 Apr 2019 00:24 - 17 Apr 2019 00:26 #206252 by yakuza
Replied by yakuza on topic R72 gearbox question

Max Headroom wrote:

Lambert wrote: Yes it was revised in 2009 with lasting results.


Do you know what the revisions actually were that cured the problems?

I stuck my endoscope inside my newer 2012 gearbox and found bearings with green caps over the sides. Could be more changes as well but closed bearings is one difference. My broken 2005 gearbox had open bearings.

2005 Jimny M16A VVT, 235 BFG MT, 2" Trailmaster, 17%/87% high/low gears.
Last edit: 17 Apr 2019 00:26 by yakuza.
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18 Apr 2019 12:17 #206329 by Max Headroom
Replied by Max Headroom on topic R72 gearbox question
Thanks for your reply Yakuza.

Let me get this right; the later 2012 g'box is identical to the R72, including ratios etc (apart from the already noted reliability improvement)??


IF IT AINT BROKE, KEEP FIXING IT UNTIL IT IS

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18 Apr 2019 13:11 - 18 Apr 2019 13:12 #206332 by yakuza
Replied by yakuza on topic R72 gearbox question
Yes! My box is 2012 but the improvement came from 2009 models. Most likely at the face-lift with the front bumper.
I did swap over the shift stick assy but I think that was just because my box did not come with it.

There is a less leaky intermediate drive shaft from 2009. Could be smart to buy that as well from the same car as the new gearbox. Your new gearbox last longer with oil in it. :)

2005 Jimny M16A VVT, 235 BFG MT, 2" Trailmaster, 17%/87% high/low gears.
Last edit: 18 Apr 2019 13:12 by yakuza.
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18 Apr 2019 13:15 #206333 by Max Headroom
Replied by Max Headroom on topic R72 gearbox question
Yakuza, very many thanks for this clarification [Smiley thumbs up needed here!]


IF IT AINT BROKE, KEEP FIXING IT UNTIL IT IS

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18 Apr 2019 15:41 #206336 by Lambert
Replied by Lambert on topic R72 gearbox question
What he said!^^

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